XLK · Annual Return — XLK's year-by-year ledger
Complete years since 1999. The 1999 print of +75% sits at the extreme right tail; 2008's -42% at the extreme left. 2023-2024 stacked two AI-driven up-years in a row.
What this page answers
This static page is built to answer searches for XLK · Annual Return. It summarizes the live dataset behind the XLK's year-by-year ledger panel and links to the full interactive chart.
Complete years since 1999. The 1999 print of +75% sits at the extreme right tail; 2008's -42% at the extreme left. 2023-2024 stacked two AI-driven up-years in a row. The data is refreshed by the History of Market pipeline and published as a stable JSON endpoint for research, citation, and AI-agent use.
Latest Snapshot
- Updated
- 2026-05-11
- Average
- +1,414.0%
- Positive years
- 21
- Negative years
- 7
- Best year
- 1999 +6,516.0%
- Worst year
- 2000 -4,190.0%
- Observations
- 28
- Sample
- 1999-12-31 – 2026-12-31
Static Preview
Data & Source
GET /api/xlk/annual-returns.json — Canonical dataset endpoint.
Yahoo Finance · Macrotrends · Robert Shiller · FRED · S&P Global · Nasdaq · NBER.
FAQ
Where does this data come from?
History of Market combines public market and macro datasets including Yahoo Finance, Macrotrends, Robert Shiller, FRED, S&P Global, Nasdaq, and NBER. The exact endpoint for this panel is linked below.
How often is it updated?
Daily-tier datasets refresh after the U.S. market close, with a broader weekly refresh on Sunday. The timestamp shown on this page comes from the JSON payload.
Can I use the data?
Yes, for research and education with attribution to History of Market. Upstream data sources retain their own terms.